反应详情

温度

70 °C

A mixture of 2.9 parts of ethyl 4-[(1H-benzimidazol-2-yl)amino]-1-piperidinecarboxylate, 1.8 parts of 4-(chloromethyl)-2-methylthiazole monohydrochloride, 2.12 pans of sodium carbonate and 45 parts of N,N-dimethylacetamide was stirred overnight at 70° C. The reaction mixture was poured into water and the product was extracted with 4-methyl-2-pentanone. The extract was dried, filtered and evaporated and the residue was crystallized from acetonitrile. The product was filtered off and dried, yielding 1.5 parts (37.5%) of ethyl 4-[[1-[(2-methyl-4-thiazolyl)methyl]-1H-benzimidazol-2-yl]amino]-1-piperidinecarboxylate; mp. 160° C. (comp. 12).

1. extractionthe product was extracted with 4-methyl-2-pentanone
2. customThe extract was dried
3. filtrationfiltered
4. customevaporated
5. customthe residue was crystallized from acetonitrile
6. filtrationThe product was filtered off
7. customdried